Im on my second free site so Im twice as experienced as you
So take this for what it is - one newbie giving a free site review to another.
Your index page has hardcore banner image on it. Some link lists dont allow any hardcore on the index / warning page.
Everything loaded very slowly for me. I mean VERY slowly. This may be something with my location. Just thought I should mention that.
The pages are very plain and the blue sponsor link on your galleries doesnt show up very well. Maybe a different color link would work better to bring attention to your ads.
You are allowed 3 links per page to sponsors (or your hub / personal links). I personally would use them. But since your pages are plain without any clutter 3 might be over doing it and 1 may be plenty (again, Im a newbie and havent even begun experimenting myself).
Good luck with it and your free site submitting
Cheers
WB